Here are Malaysia’s old and new flags, the Sang Saka Merah Putih (Traditional Red And White) and Jalur Gemilang (Stripes Of Glory), respectively.
Sang Saka Merah Putih is today the flag of Indonesia. Indonesia was formerly part of Malaysia’s previous entity, the Johor Empire.
The blue flag with a white crescent moon and star was also used by the Johor Empire.